Object wont move when following tutorial

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hey guys I am new to Unity, I am currently fallowing this tutorial http://www.youtube.com/watch?v=N49cfP-MWJA currently I have all object set and ready to go, but when its time to create the script the object (ball) wont move at all. I created the script first then created the rigidbody. Yet the ball wont move at all.. is there an order of how I am supposed to create this? or it does not matter? The JS file is there when I click on the ball, and it is checked.. I also deleted the component and re applied it.. by dragging it to the ball, yet still nothing. I am using Unity 4.2.1, if anything here is the code.

  var movezSpeed = 100;
 
  function Update () 
  {
          var rotation : float = Input.GetAxis ("Horizontal") * movezSpeed;
          
          rotation *= Time.deltaTime;
          rigidbody.AddRelativeTorque (Vector3.down * rotation);
  }

also are there any limitations when using JS over C#? What I mean is... can I stick to JS or at a certain point will I need C#?

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Answer by robertbu · Sep 28, 2013 at 04:20 AM

For a ball on top of the cube (Y being up) and a camera looking towards positive 'z', your AddRelativeTorque() should be using Vector3.forward or Vector3.back:

 rigidbody.AddRelativeTorque (Vector3.back * rotation);

If this change does not fix the app, look under Edit>Project Settings>Input and verify that 'Horizontal' has been setup correctly. The default setup as the arrow keys and I think WASD setup.

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xlordt · Sep 28, 2013 at 04:34 AM 0

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oh wow, you are correct, but how do I change this back to using down ins$$anonymous$$d of up? please forgive me for my ignorance, I just started using Unity today.. yet I do know JS, and some C#

robertbu · Sep 28, 2013 at 04:36 AM 0

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I don't understand your followup. Change what from down ins$$anonymous$$d of up. If the ball is rotating the wrong way based on your input keys, change Vector3.back to Vector3.forward. Note JS and the version of JS used by Unity (often referred to as 'Unity Script'), have some fundamental differences.

xlordt · Sep 28, 2013 at 04:39 AM 0

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Yes sorry,l I got it.. Really thank you very much for your help.

Object wont move when following tutorial

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